Gurobi 5.6.3 (linux64) logging started Wed Oct 8 01:48:09 2014 Optimize a model with 35721 rows, 35533 columns and 141564 nonzeros Presolve time: 0.97s Presolved: 35721 rows, 35533 columns, 141564 nonzeros Variable types: 1 continuous, 35532 integer (35532 binary) Found heuristic solution: objective 1.3498610 Found heuristic solution: objective 1.0424926 Found heuristic solution: objective 0.8185075 Root relaxation: objective 9.147662e-02, 8230 iterations, 2.72 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.09148 0 1805 0.81851 0.09148 88.8% - 4s H 0 0 0.3617240 0.09148 74.7% - 4s H 0 0 0.1866843 0.09148 51.0% - 5s 0 0 0.09258 0 1592 0.18668 0.09258 50.4% - 8s 0 0 0.09258 0 1645 0.18668 0.09258 50.4% - 9s 0 0 0.09278 0 1655 0.18668 0.09278 50.3% - 9s 0 0 0.09289 0 1676 0.18668 0.09289 50.2% - 10s 0 0 0.09289 0 1647 0.18668 0.09289 50.2% - 10s H 0 0 0.1648419 0.09289 43.6% - 11s 0 2 0.09413 0 1523 0.16484 0.09413 42.9% - 12s 45 47 0.10204 26 1302 0.16484 0.09564 42.0% 428 15s H 54 54 0.1601906 0.09564 40.3% 409 15s H 81 81 0.1578829 0.09564 39.4% 428 16s * 85 81 47 0.1573026 0.09564 39.2% 424 16s * 140 119 31 0.1560092 0.09565 38.7% 375 18s H 165 138 0.1539750 0.09582 37.8% 374 19s * 179 144 28 0.1491624 0.09582 35.8% 358 19s 189 148 0.11623 6 818 0.14916 0.09587 35.7% 362 20s H 192 149 0.1482932 0.09587 35.4% 359 20s H 202 157 0.1478634 0.09587 35.2% 357 20s * 272 171 6 0.1473250 0.09657 34.5% 336 22s 307 154 infeasible 13 0.14733 0.09995 32.2% 385 25s 387 110 infeasible 8 0.14733 0.10620 27.9% 434 30s * 497 11 8 0.1465547 0.13922 5.01% 383 32s Cutting planes: Gomory: 2 MIR: 53 Zero half: 1 Explored 509 nodes (215917 simplex iterations) in 32.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.465546903261e-01, best bound 1.465546903261e-01, gap 0.0%